The serotonin (5-HT) system is considered important for decision-making. However, its role in reward- and punishment-based processing has not yet been clearly determined.
The role of 5-HTTLPR in choosing the lesser of two evils, the better of two goods: examining the impact of 5-HTTLPR genotype and tryptophan depletion in object choice.
Department of Health and Human Services, Mood and Anxiety Program, National Institute of Mental Health, National Institutes of Health, 15K North Drive, Room 300A, MSC 2670, Bethesda, MD 20892-2670, USA. peschark@mail.nih.gov